parent
2981bece55
commit
5171d167ce
|
@ -1194,6 +1194,25 @@ def raises(expected_exception, *args, **kwargs):
|
|||
>>> with raises(ZeroDivisionError):
|
||||
... 1/0
|
||||
|
||||
Or you can specify a callable by passing a to-be-called lambda::
|
||||
|
||||
>>> raises(ZeroDivisionError, lambda: 1/0)
|
||||
<ExceptionInfo ...>
|
||||
|
||||
or you can specify an arbitrary callable with arguments::
|
||||
|
||||
>>> def f(x): return 1/x
|
||||
...
|
||||
>>> raises(ZeroDivisionError, f, 0)
|
||||
<ExceptionInfo ...>
|
||||
>>> raises(ZeroDivisionError, f, x=0)
|
||||
<ExceptionInfo ...>
|
||||
|
||||
A third possibility is to use a string to be executed::
|
||||
|
||||
>>> raises(ZeroDivisionError, "f(0)")
|
||||
<ExceptionInfo ...>
|
||||
|
||||
.. note::
|
||||
|
||||
When using ``pytest.raises`` as a context manager, it's worthwhile to
|
||||
|
@ -1216,25 +1235,6 @@ def raises(expected_exception, *args, **kwargs):
|
|||
|
||||
assert err.errno = errno.EEXISTS # this will now execute
|
||||
|
||||
Or you can specify a callable by passing a to-be-called lambda::
|
||||
|
||||
>>> raises(ZeroDivisionError, lambda: 1/0)
|
||||
<ExceptionInfo ...>
|
||||
|
||||
or you can specify an arbitrary callable with arguments::
|
||||
|
||||
>>> def f(x): return 1/x
|
||||
...
|
||||
>>> raises(ZeroDivisionError, f, 0)
|
||||
<ExceptionInfo ...>
|
||||
>>> raises(ZeroDivisionError, f, x=0)
|
||||
<ExceptionInfo ...>
|
||||
|
||||
A third possibility is to use a string to be executed::
|
||||
|
||||
>>> raises(ZeroDivisionError, "f(0)")
|
||||
<ExceptionInfo ...>
|
||||
|
||||
Performance note:
|
||||
-----------------
|
||||
|
||||
|
|
Loading…
Reference in New Issue